[Stoves] Re Alexis Belonio article

[David G. LeVine]

>If the energy requirement  is 15,975 Joules per gm of steam to break it
>apart into 2H+O, it means that energy has to be absorbed as heat, right?

I believe you are correct.

>What would the temperature be if this happened?  I presume the
>disintegration would take place as follows:
>
>1) the temperature rises until the added energy reached 463 kJoules (per
>mole) and one of the hydrogens would break away.
>
>2) the temperature would drop,
>
>3) it would repeat this leaving the oxygen free

4.) C+O => CO + heat


>There might be other intemediary steps involving Carbon that worked at a
>lower temperature which seems more likely.
>
>But....if this is the path, for 1 gm of steam to absorb 25700 J of energy
>and having a specific heat of 2.0276 J/gm it would have to reach 12,600
>degrees before separating.
>
>To me, it indicates there are steps involving lower temperature reactions
>that might 'eat away' at the water molecule converting it to things that in
>the end, result in water again.  But at no time would there be free hydrogen
>and oxygen.  I am still waiting to see a realistic explanation of how this
>happens, if indeed it does.

I am not enough of a physical chemist to give you the right answers, 
I would suggest that the GASIFICATION list at 
gasification at listserv.repp.org might have some who can help.  This is 
something I was unaware of until it was discussed as part of the 
producer gas production discussions there.


David G. LeVine
Nashua, NH  03060


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